I bought a dress for you only 10 dollars in a sale; it was a real _____.
| A．exchange | B．bargain | C．trade | D．business |
It remains doubtful ______ immediate measures could be taken to prevent underground water pollution.
| A．how | B．whether | C．that | D．where |
He was born on ______ winter morning in 2010, when ______most severe storm struck the city and caused hundreds of deaths.
| A．a; the | B．the; the | C．a; a | D．the; a |
---I will drive to the station to buy a ticket to Beijing for next Sunday.
---______? Actually you can order a ticket online.
| A．Why bother | B．What for | C．So what | D．Why not |
Having worked nonstop for three hours in the sun, John returned home, ______.
| A．tired and coldly | B．confused and drunk |
| C．full and sleepy | D．thirsty and hungry |
______ you may have , you should gather your courage to face the challenge .
| A．However serious a problem | B．Whatever serious a problem |
| C．However a serious problem | D．No matter how a serious problem |